Shuttle-mechanism for embroidering-machines.



M. SGHOBNPBLD. SHUTTLE mnommsu FOR BMBBOIDBRING monmns.

Patented May 9,4191 1.

APPLICATION FILED PEBJB, 1910.

MORRIS SCHOENF ELD OF RORSCHACH, SWITZERLAND.

SHUTTLE MECHANISM FOR EMBROIDERING-MACHINES.

Specification of Letters Patent.

aonoso.

Patented May 9,' 1911.

Application filed February 16, 1910. Serial No. 544,194.

To all whom it may concern:

Be it known that l, Mourns SCIIOENl-ELD, a citizen of the United States, and a resident of the city of ltorsehaeh. Canton of St. Gall, Switzerland, have invented certain new and useful Improvements in Shuttle Mechanism for 'Imln-oidering-Machines, of which the following is a specification.

My invention relates to a shuttle mechanism for emln'oidering maehines wherein there are used a large number of sewing ieedles and a corresponding number of shuttles and-the object is to provide a ver} simple and practical means whereby all, or a large group, of the shuttles may be renewed while the machine is in operation and without delaying the operation of the machine and in its entirety my invent-ion also contemplates the use of a shuttle mechanism whereby two or more. threads of different color may he simultaneously retained in such operative relation with the needles that the shuttle 'arrying either of said eolors may be readily' thrown into or out of engagement with the sewing: threads, thus making it pos sible to produce stitching with a |ni|llie()l.ol background and without having to rethread the shuttles l'or each thread. This is accomplished b) emplo \'in two or more shuttles for each needle, either o'l' which may be thrown into operative relation with the needles at the will of the, operator.

15y employing more than one shuttle for each needle and so constructing the mechanism that either set of shuttles may be used, the shuttles may be refilled without having .to delay the operatitm ot' the machine for any material length of time.

By using one set. of shuttles until they have been exhausted, and then shifting the mechanism to advance the other set into operative relation with. the needles, the lirst shuttles may be relilled and replaced while the machine is in operation and while the second mentioned set are continuing' the work. in this war the delay experienced in keepiiu: the shuttles tilled is avoided, and in machines where there are ma.n v hundred needles this is of importance. It is also important to provide an adjustment whereby a single operation will adjust a large nnmher of the shuttles simultaneousl H has been possible in prior machines to withdraw a single shuttle during the operation of the. machine, but that has nola-aringg' on the present invention, the purpose of which is to enable the total number of shuttles of the n'iaehine, say several hundred, or a large division thereof.-upon the breaking of the threads or upon the same being used up. to be replaced by charged shuttles.

The objects above set forth are obtained preferably by making the shuttle traek horizontal and placing thereon enough shuttles to provide say two shuttles for each needle and by making the shuttle driving rail adjustable, whereby the shuttles may be ad-' vaneed in relation to the needles. During the operation of the machine all of the shuttles are being, driven but only one to each needle is engaging the. sewing thread while the other is traveling idle; and when the' driving bar is advanced,- or adjusted in its operation, the set of shuttles which was previonslyidle. is broughtinto operative relation with the various needles while the ones which had been operating are moved so as to be out of operative relation with theneedles; \Yhenever the threads of one set of shuttles have given out, the operator has only to adjust the'shuttle drive bar, when all of the shuttles ot' the machine, or of a row, will be still reciprorated, but.- the shuttles which have become empty will be shifted in their relation to the lltGtlltS and the other set will be. advanced into operative relation to the needles, when the exhausted shuttles may be replaced without having to stop the machine during a long: period as heretofore.

The only stopping necessary is for adjusting the, drive bar and the cutting; of the threads. After this the maehine may be started again and the. exhausted shutlles replaced while the. machine is in operation.

tn the drawings forming a part oi this application. Figure l is an elevat'ioi'i of a pull ol the shuttles of an emln'oideriir; maehine and their o wratiug elements. looking from that side nearest the fabric, Fig. 2 is a similar view showing the mechanism nearer the bottom ol' the machine and in which lie'ure another form of my invention is shown. Fig. t is a similar view showinr how the-shuttle drive bars of a number of rows of shuttles may be simultaneously adjusted lf-ig. t is an elevation showing in detail another modification of one part of my invention. l igr. 5 is a vie similarly showing another modification of a part of my invention. Fig. 4' is a view similarly showing-another modification of a part of my inventioli. Fig. 7 is a view similarly shuwim. another loo modification of a part of my invention, and

Fig. 8 is a cross section showingthe relation of the needle bar and shuttle track.

My present invention I is particularly adapted for use in a machine where they shuttle tracks are disposed horizontally and I will describe my invention as applied to such a machine although I do not wish to be understood as imiting the scope of my invention thereby, as it is possible to adapt the invention to other forms without departing from the broad spirit of myinvention.

Theinvention may be applied toalmost any format embr oidering machine where there are many simultaneously operating needles operating upon a fabric and I will only refer .to so much of an embroidering machine as may be necessary to.show an application of my invention.

In the machine herein illustrated the verti cal walls or members a, of the frame are connected by horizontal beams b, 0, so as to form a rigid .-fraine structure. Arranged between the beams b, and c, at certain distances are upright standards (1, of which the one nearest thcfront wall a, is shown. Rigidly secured to these standards are the shuttle rails or tracks a, which maybeof any well known -construction, with the ekception of the disposition of the grooves as herein shown and which tracks preferably run the length of the machine; and as shown in the drawings, there may bo as many of these tracks arranged in vertical rows asthere are rows ofneedles. As shown in the present case these tracks are preferably provided .with a groove 6, to guide .the shuttle drive bars f, and a groove c to guide the shuttles themselves, whereby the shut't'les may be arranged elose to each other," end to end, while the drive bars are guided in so I arate grooves. To the end of the drive bars are secured a block or head g, to which a pitman oft-rod h, is pivotrllyiattached.

In the form shownjn Figs. 1 and ,2 allthe rods k, are fulcrumed to' belleranlr levers h, capable of rocking on pivots i, and operter receives its force from any operating ated by a common vertical rod k, which latmeans which may be employed for'operating the embroidering machine, such as the operatin shaft ,p. A springm, (Fig. 2) tendsto raw therod k, downward, so that the roller"n on its lower end is constantly 'hcld ineont'act with the circumference of a cam 0, which is fast on the main-shaft 7), and by which the rod is is rcciprocated.

' In-the-construetion as sofar described the .0 rating bar k, is adapted to-have a 'pre etermined movement whichyremains constant and the adjustment of the shuttles for placing one or the otherset into opera 'tive relation with the needles is accomplished by altering the connection either of the blobk g with the shuttle drive f, oighyytltering'tbe used.- 5

connection ofthe--bloek g with the connecting rod h. In the example shown inthe upper rows of Fig. 1 the block g may be connected in either of, two ositions with the drive 7, by placingf-he bo ts 8, either in the slots '9' or g". If the bolts .5, are in the slots g then the relation of theshuttles to the needles will be such that the alternateshut- V tles 't, of a: row will'be moved acrossthe path of the needles and engage their threads,

the other shuttles t' duringthis adjustment simply move .idly and do not en age any threads. ,Therear'e as many shutt es-t and likewise t as there are needles to be en'- gaged, It now, the shuttles 25 should become exhausted of their threads then the bolts '8, i

are taken out of the slots 9, the bar f= is' moved forward and the bolts are reinserted in the slots 9' when the new adjustment will cause an advance in the position of the drive bar 7' and instead of the shuttles t'passing.

across the needles as. heretofore, the shuttles} will move across the needles and'enga e= their threads: the shuttles-t then moving id e.

-The shuttles t may now be refilled while the machine is operating with the shuttlest,

thereby avoiding the necessity of stopping the machine while the many shuttles are bet ing refilled. It isunderstood that-the drive-- bars f are provided with fingers-f whi'ch engage the shuttles and cause their reeipi-ocation. If it is desired to have the reverse side i of the fabric sewn with. a plurality of col-' oredthreads, one setof shuttles t will be' filled with one color thread and the other changing the adjustment oft he shuttle drive the "one or the other eol'oredthread may In the fog-m. shown in" Fig. a; the tense 105. mentis made by'means of a double conneetionbetween the rod-h, and'the block g. The red It is provided with a ertures u', and the block g-is provided wit one aperture.

A' pin u passing through one of the aper;

tures u in the rod h, and through the, aperwhen one set of shuttles-will be in operation,

while-the engagenientof the pin it in the other -of the apertures u, and in the aperture of the block g will form the-other'adjustment a when the other set of shuttles will be in op eratiom In Fig. 4 the adjustment is made bymeans of a lever action; In this form'the block g is fixed to the-end oftherod h and it, has

a slot 1' in which apin "1" 'on the lever '10,

tlll8'll'l the block 1 forms'one engagement moves, the lever 1p,,' being fulcrumed at w" to the drive ba-r'f. lVith the lever-in the position shown in s Fig. 4, the shuttles t will be in operation. When it is, desired to. Y throw the shuttles t-in'to operation'the lever.

the relative connection betweenthe block. g and-thedrive f will be changed.

"m is moved 'over tothe'leftposit-iony'when Ice set with another-color thread and upon in the"form shown in Fig. the adjustment is made by means of a longitudinal bolt. The threaded bolt 6, passes through the block 9, which is internally threaded and the ends of the bolt c are clamped to the ears l on the drive f by means of nuts. By loosening the nut on the bolt e and turning the bolt the block y will be adjusted along the same thereby adjusting the connection made operative.

between the block and the drive f.

In thejjorm shown in Fig. (i the adjustment is made by a rack and pinion action. pinion y, is secured to the block by a bolt 3 and the teeth of this pinion engage a rack on the drive By turning the pinion and clampii'ig it by the bolt 3 the relation between the block g" and the drive f may be adjusted to throw either set of shuttles into operative relation with the needles.

In the form shown in Fig. 7 the rod l', is directly connected with a pinion .2, which is suitably mounted to engage with a rack 2 on the under side of the drive f. The pin Z passing through the rod K: may be engaged m either the slot .2 or 2" whereby the pinion will be altered, thereby driving the drive. f with either the first or second set of shuttles in operative relation with the needles.

Tn the form shown in Fig. 3 the connections between the drive f and the rods it. remain constant but these rods h are connected with a link 7 which is itself adjusted in its connection with the rods r. The pin 1/ passing through the aperture in the link is en gaged in either of the apertures in the rod r according to which-set of shuttles is to be In this form the several rows of shuttles are simultaneously adjusted, or in other words the entire shuttle mechanism is simultaneously adjusted. lhis may be very advantageous in certain forms ofmachine.

' it is obvious that the change from one set of shuttles to another is very simple and there is a saving of time in the coloration of the machine. uniformity in the. operation is secured and the shuttles require less attention.

lVhile l have carefully described in detail readily changed to throw either of said sets into operation. I have shown the adjust ment. as taking place between the connecting rod and the drive I, but it. is understoml that the :uljustmcnt' may be made at; various other places in the shuttle mechanism, so long as there is an adjustment between the ultimate traveling in one groove and the shuttle drives in the other the shuttles may be placed close together, thereby rendering the mechanism practical and convenient.

Having described my invention what I claim is:

1. A machine of the class described having a plurality of sewing needles arranged in a row, a longitudinal shuttle track, a.

plurality of shuttles for each of the needles, adapted to travel in said shuttle track, a shuttle drive common to the several shuttles, ope rating means therefor and means for adjusting the connection of the operating means and shuttle drive, to'eause either set of shuttles to be moved in operative relatiou' with their needles and whereby the Inoperative shuttles may be removed during the operation of the shuttle mechanism.

A machine of the class described having sewing needles arranged in a row, a longitudinal shuttle. track and a plurality of shuttles for each of said needles ar a nged one behind the other in said shuttle track, a shuttle drive having fingers for engaging the several shuttles and adapted to operate the said shuttles simultaneously, operatingmeans for the shuttle drive and means for adjusting the operative position of the shuttle drive, whereby either set of shuttles may be o mrated in operative rclationwvith their respective needles, while-the other set is inoperative, whereby the inoperative shuttles may he. removed during the operation of the embroidering-machine.

A machine of the class described having a plurality of rows of sewing needles and shuttle mechanism therefor, comprising shuttle guides, a plurality of sets of shuttles for the several needles, cooperating with the shuttle guides, shuttle drives for the. shuttles of the several rows, means for operating the shuttle drives, common to a. plurality there.- oF and means whereby the operation of the drives by the. o' u-rating means may be separately adjusted to cause either set. of shut.- tles of a given row to engage their medles.

-l-. A machine of the class described having a plurality of sewing needles and shuttle nua-hanism therefor, comprising shuttle tracks, a plurality of sets of shuttles for the several needles cooperating with the shuttle tracks, shuttle drives for the. shuttles of the several rows, means for operating the shuttlc drives, common to aplurality thereof,

\ Q and means whereby the operation of the several drives b the operating ,means may be simultaneous v adjusted to cause either set of shuttles of the several rows to cooperate with their needles.

A machine of the class-described having sewing-needles and a shuttle mechanism, comprising a longitudinal shuttle track, a plurality of 'sets of shuttles for the several needles, 'guided by the shuttle track, a shuttle drive for the several shuttles, an upri ht adjustably connectin shuttle operating elelnent and means or the upright o erating element and the shuttle drive, where either of said sets of shuttles ma .be cause to'cooperate with the said nee les.

6. A, machine of the class described having a plurality of rows of sewing needles,

shuttle guidesand a' plurality of rows of shuttles, comarising a plurality of sets of shuttles for-t eseveral needles, drive bars 'for -the several rows of shuttles, with links, -operatin means, and a nk connected with the lin of the several drive bars and adjustably connected with the 0 erating means, whereb the Several drive ars may be simultaneous y adjusted to cause the .wit the needles.

Signed at St. Ga1l, in the Canton of St.

. MORRIS SGHOENFELD. In the presence of- ALBERT PHILLIPS, RANDALL ATKINSON.

rovided coiifierati'on of either of said sets of shuttles I 3 Gall, Switzerland, this 3rd day of February, 1910. i 

